Finding the Fourth Proportional to 127,969.53, 191,872.05 and 53,141.31

Step by Step Solution

1. Step 1: Write the proportion equation
   127,969.53 : 191,872.05 = 53,141.31 : x
2. Step 2: Convert to fraction form
   127,969.53/191,872.05 = 53,141.31/x
3. Step 3: Cross multiply
   127,969.53x = 191,872.05 × 53,141.31
4. Step 4: Simplify right side
   127,969.53x = 10,196,332,089.39
5. Step 5: Solve for x
   x = 10,196,332,089.39/127,969.53
6. Step 6: Final answer
   x = 79,677.81